2Dapi; hixie: Add support for MutationObservers. (Also, add a minor internal note in the canvas section unrelated to this.) (Also, automated update of the CLDR which resulted in removing separate support for el-POLYTON.) (whatwg r7009)

hixie: Add support for MutationObservers. (Also, add a minor internal note in the canvas section unrelated to this.) (Also, automated update of the CLDR which resulted in removing separate support for el-POLYTON.) (whatwg r7009)

hixie: Clean up the term 'specially focusable' and the requirements around it so that it all makes more sense. In particular, clarify that 'being rendered' is a prerequisite to being focusable even if you have tabindex='' set. (whatwg r7005)

hixie: Fix 'activation behavior' definitions for form controls so that .click() doesn't do anything on them if they're disabled; fix definition of default submit buttons so that they are more predictable; unhide some v2COMMAND text that is now applicable again (whatwg r7004)